看你的电工基础知识牢固吗？(4)

homestay

What is the first thing you need to do and need to know before working on an electrical cuicuit/equipment?

jack_lai

The question is unclear?
4 z# y5 x2 X4 R  K9 Y) o( j: sFirstly, the equipment or circuit is energized or not ?
5 r1 g* L7 @, h$ L/ e0 @0 GIf yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. You have turned the power off for this equipment or circut. After that , you can do what you want to do.

Allan2008

是否带电是很重要的。

homestay

The question is unclear?
Firstly, the equipment or circuit is energized or not ?
; j- y$ c& m4 B/ z2 S, {  `If yes. You have to get the permit to shut down the power.  After you get the permit … fill a form sing the paper…. ...
5 H" p2 V3 O9 a7 I6 o  v, Sjack_lai 发表于 2010-2-15 22:24

7 d( d: m( b, R3 s7 ?“Firstly, the equipment or circuit is energized or not ?”------打得对：）